Quick answers
- Is CVE-2026-12350 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-12350 being exploited in the wild.
- How severe is CVE-2026-12350?
- Medium severity, with a CVSS score of 6.5, published 19 October 2026.
- Which products and versions are affected?
- IBM MQ.
- Is there a fix for CVE-2026-12350?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-12350 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-12350?
- Check whether you run IBM Mq. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A denial of service vulnerability exists in IBM MQ's asynchronous message consumption handler. An authenticated attacker can trigger an unspecified fault in the queue manager agent by sending a malformed asynchronous consume request, causing a process crash and temporary service outage. The attack requires valid authentication credentials and network access to the MQ infrastructure.
Affected products
- IBM MQ
Timeline
- 2026-10-19: disclosed